Nissan Titan A60. Manual - part 74

AV

REAR DOOR SPEAKER

AV-121

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

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REAR DOOR SPEAKER

Description

INFOID:0000000006166512

The audio unit sends audio signals to the audio amp. The audio amp. amplifies the audio signals before send-

ing them to the rear door speakers using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000006166513

Regarding Wiring Diagram information, refer to 

AV-151, "Wiring Diagram - Without Navigation System"

.

1.

SPEAKER HARNESS CHECK

1. Disconnect audio amp. connectors M113 and suspect speaker

connector.

2. Check continuity between audio amp. harness connectors M113

(A) and suspect speaker harness connector (B).

3. Check continuity between audio amp. harness connectors M113

(A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 2.

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

SPEAKER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

M113

11

D207 (crew cab)

B76 (king cab)

1

Yes

27

2

12

D307 (crew cab)

B159 (king cab)

1

28

2

Connector

Terminal

-

Continuity

M113

11

Ground

No

27

12

28

ALNIA0726GB

AV-122

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

REAR DOOR SPEAKER

1. Connect audio amp. connectors and suspect speaker connec-

tor.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between audio amp. harness connectors M113

terminals with CONSULT-III or oscilloscope.

Are audio signal voltage readings as specified?

YES

>> Replace suspect speaker. Refer to 

AV-179, "Removal

and Installation"

.

NO

>> GO TO 3.

3.

PRE-AMP HARNESS CHECK

1. Disconnect audio unit connector M172 and audio amp. connec-

tor M113.

2. Check continuity between audio unit harness connector M172

(A) and audio amp. harness connector M113 (B).

3. Check continuity between audio unit harness connector M172

(A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 4.

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

4.

PRE-AMP SIGNAL CHECK

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M113

11

27

Receive 
audio sig-
nal

12

28

ALNIA0727GB

SKIA0177E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

M172

13

M113

8

Yes

14

24

15

7

16

23

A

—

Continuity

Connector

Terminal

M172

13

Ground

No

14

15

16

ALNIA0729GB

AV

REAR DOOR SPEAKER

AV-123

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

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1. Connect audio unit connector M172 and audio amp. connector

M113.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector M172

terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace audio amp. Refer to 

AV-183, "Removal and

Installation"

.

NO

>> Replace audio unit. Refer to 

AV-175, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M172

14

13

Receive 
audio sig-
nal

16

15

AWNIA1616ZZ

SKIA0177E

AV-124

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

REAR DOOR TWEETER

REAR DOOR TWEETER

Description

INFOID:0000000006166514

The audio unit sends audio signals to the audio amp. The audio amp. amplifies the audio signals before send-

ing them to the rear door tweeters using the audio signal circuits.

Diagnosis Procedure

INFOID:0000000006166515

Regarding Wiring Diagram information, refer to 

AV-151, "Wiring Diagram - Without Navigation System"

.

1.

TWEETER HARNESS CHECK

1. Disconnect audio amp. connectors M113 and suspect tweeter

connector.

2. Check continuity between audio amp. harness connectors M113

(A) and suspect tweeter harness connector (B).

3. Check continuity between audio amp. harness connectors M113

(A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 2.

NO

>> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.

TWEETER SIGNAL CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

M113

11

D208

1

Yes

27

2

12

D308

1

28

2

A

-

Continuity

Connector

Terminal

M113

11

Ground

No

27

12

28

ALNIA0726GB